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Alex Rivera
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Essentially I cannot find documents or resources that explains the procedure of upgrading a running Elasticsearch instance into the current version. Please help me out in a few scenarios: If I am running an Elasticsearch instance in a single server, how do I upgrade the instance and not lose data? If I am running multiple Elasticsearch instances in a number of servers, how do I keep my operations running, while I upgrade my Elasticsearch instances without losing data? If there are proper procedures or explanations on this it will greatly help my understanding and work. Thanks!
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